John r



(No Model.)

J. R. BEYNON.

GRAIN SEPARATOR.

No. 407,052. Patented July .16, 1889.

@WFowey a N4 PEYERs Phao-Lvm .D. C.

UNITED STATES PATENT OFFICE.

JOHN R. BEYNQN, OF \VATERTOWVN, IVISUONSIN, ASSIGNOR OF ONE-HALF T 0JAMES B. MURPHY, OF SAME PLACE.

GRAlN-SEPARATOR.

SPECIFICATION forming part of Letters Patent N 0. 407,052, dated July16, 1889. Application filed December 11, 1888. Serial No. 293,259. (Nomodel.)

To all whom it may concern:

Be it known .that I, JOHN R. BEYNON, of \Vatertown, in the county ofJeiferson, and in the State of IVisconsin, have invented certain new anduseful Improvements in Grain- Separators; and I do hereby declare thatthe following is a full, clear, and exact description thereof.

My invention relates to mill appliances; and it consists in a peculiarconstruction and arrangement of valve with relation to a forced currentof air, and also in certain combinations of parts, to be hereinafterdescribed with reference to the accompanying drawings and subsequentlyclaimed.

In the drawings, Figure 1 represents a sectional view of an elevator andseparator, and illustrates three applications of the valve that formspart of my invention; Fig. 2, a rear elevation of the upper portion ofthe device shown by Fig. 1; Figs. 3 and 4, detail views of an adjustableweight, and Fig. 5 an elevation of a hopper that forms part of thedevice shown by Fig. 1.

Referring by letter to the drawings, A represents a hopper-shapedreceptacle that communicates through an opening a with a casing B for afan 0, this casing being supported on said receptacle and provided witha delivery-spout D. Depending from the receptacle A and communicatingtherewith through an opening I) is a chamber E, the latter having anoutlet 0 and an inclined delivery uard d, that is preferably extended acertain distance outside of said outlet. Projecting from the chamber E,to cover the outlet 0 therein, is a hood F, provided with an inclinedback piece 6, and pivoted in the hood is a valve G, that closes saidoutlet by coming against the outer edge of the delivery-guard (Z. Thatportion of the valve G above its pivot f extends outward at an angle toa vertical line and presents a surface of less area than that portion ofsaid valve below the pivot.

Fitted in the bottom of the chamber E is the lower end of a tube II,having its upper end provided with a perforated cap 9, a space beingleft between the said upper end of the tube and the lower rim of the capfor the escape of air. To regulate the admission of air to the tubeII,-I provide a disk I, having a screw-threaded stem 71 that works in abearing i in a brace J, arranged within the chamber E, said stem beingturned by hand to adjust the disk.

Extending from the top to within a certain distance of the slantingbottom of the receptacle A is a partition K, and at its upper end theadjacent wall of said receptacle is cut away to form an opening j, thatcommunicates with a flue Ii, the latter being of any desirable length.Secured to the flue L and communicating therewith is a hopper M, thelatter being provided with a casing N for a pivoted valve 0, similar ingeneral construction to the valve G described in connection with thechamber E, that depends from the main receptacle. The inner wall 7c ofthe valve-casing is provided with two openings m n, that communicatewith the fiue L, and the outer wall 1) of said casing has an opening 1in its lower end that is in line with said opening "a, the area ofopening q being gradually diminished in an upward direction.

The valve 0 is so arranged that the vertical portion 7" thereof normallycloses the opening q in the outer wall of the valve-casing N and is ofless area than the angular portion 8, the latter serving to normallyclose the opening on in the inner wall of said valve-casing.

Arranged within the fan-casing IE, to depend into the receptacle A, is ashort flue I, normally closed at its upper end bya pivoted valve Q,similar in form to the ones G 0, above described.

As best illustrated by Figs. 2, 3, and 4, a block R is slipped on thepivot tof the valve Q, and this block is provided with a slot at for theshank r of a weight S, and by means of a set-screw T said block andshank are rigidly secured to said pivot. By the construction justdescribed it will be readily seen that the block R is capable of rotaryadjustment to vary the angular position of the weight S with relation tothe pivot 25 of valve Q and that the shank u may be longitudinallyadjusted to vary the leverage of said weight.

Vith the exception of the valves and 110pper, the general constructionand arrangement of parts above described is the same as that shown in myPatent No. 394,813, December 18, 1888, and the operation is as follows:

In case the device is-employed for elevating grain, the bottom of thetube H is closed by the disk I, and the fan is started. The grain isspouted into the hopper M and falls down against the lower end of thevalve 0, the latter being held closed by the suction of the fan throughopeningsm against its angular extension, because of the latter beinglonger above the pivot than the valve proper below it. At any time thegrain rises above the opening q in the outer wall 19 of the valvecasingN the suction will be cut off from said angular extension of the valveand exerted entirely upon the remaining portion of the latter in concertwith the weight of the grain, thereby causing it to open and allow theac-' cumulated grain to escape through the openings q 11 into the flueL, where it is taken by the current from the fan and carried up throughthe opening j in the adjacent wall of the receptacle A, from whence itfalls between this wall and the partition K down into the chamber E, thelight particles being carried off by said fan. The suction of the fanagainst the greatest area of the valve G keeps the lat ter in its closedposition; but as grain accumulates on the inclined delivery-guard (Z ofthe chamber E and against the valve the area of the vertical portion ofthe latter to the air-current is gradually decreased, and the power ofsaid suction comes more and more upon the angular extension of saidvalveuntil the latter opens to permit the escape of the grain.

To separate impurities from germ-stock, the fan is run slower thanduring the abovedeseribed operation of elevating and cleaning grain, andthe disk I is run down away from the bottom of the tube 1-1. As thestock from the hopper M enters the flue L, its best quality, being tooheavy for the draft, will fall down through said flue into asuitablereceptacle, while the lighter stock will be car I ried on into thereceptacle A, the second or bestof the remaining stock falling into thechamber E, to be discharged through the valved outlet 0, while at thesame time the current of air drawn through the tube II carries off thefuzzy material and other light impurities.

The valve Q in the short flue P is for the purpose of securing anautomatic regulation of the exhaust, and operates as follows: Supposingit is designed to run the fan 0 a certain number of revolutions perminute and the speed increases, the resistance of the valve Q to thesuction will be overcome and said valve will open to supply more air tothe receptacle A, and thereby compensate for the increased speed of saidfan. By adjustments of the block R and weight S the resistance of thevalve Q can be varied at will to suit different speeds at which it maybe desirable to run the fan.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of a pivoted valve, a rotary adjustable blockarranged on the valvepivot, and a longitudinally-adjustable weightconnected to the block, substantially as set forth.

2. The combination, with ahopper and airflue, of a casing arrangedwithin the hopper, the inner wall of the casing provided with upper andlower openings and the outer wall with a lower opening only, a vali epivoted in said casing and having two surfaces of different areas andplanes, and means, substantially as described, for producing a forcedcurrent in said air-flue, as and for the purpose set forth.

3. The combination, with a chamber having an outlet-opening, of a hoodsurrounding the same and provided with a back piece, avalve pivoted inthe hood and having two surfaces of different areas and planes, andmeans, substantially as described, for inducing a forced draft againstthe valve, as and for the purpose set forth.

4. The combination, with afan and its casing, of a flue arranged in saidcasing, and a valve pivoted in the flue and having two surfaces ofdifferent areas and planes, substantially as set forth.

5. The combination, with a fan and its casing, of a flue arranged in thecasing, a valve pivoted in the flue and having two surfaces of differentareas and planes, and a weight adjustably connected to the valve,substantially as set forth.

6. The combination of the receptacle A, provided with the dependingchamber E and partition K, the tube II, having the cap g, the adjustabledisk I, the valve G, flue L, hopper M, provided with the casing N, thevalve 0, the casing B, provided with the flue P, the weighted valve Q,and the fan 0, all arranged to operate substantially as and for thepurpose set forth.

7. The combination of an air-flue having a side thereof provided with anopening, a fan having its casing communicating with the airpassage, anda pivoted valve for the opening having two surfaces of different areasand plan'es,whereby the suction created by the fan is normally exertedto maintain the closure of the valve, substantially as set forth.

In testimony that I claim the foregoingl have hereunto set my hand atWatertown, in the county of Jefferson and State of Wisconsin, in thepresence of two witnesses.

JOHN R. BEYNON.

itnesses:

S. G. RoPER, S. S. WOODARD.

IIO

